公开(公告)号：EP2267634A1

公开(公告)日：2010-12-29

申请号：EP10013329.7

申请日：2009-01-28

申请人： SIEMENS AKTIENGESELLSCHAFT

发明人： Horst, Dieter ,  Lampe, Mattias Dr. ,  Yu, Dan ,  Yuan, Yong Dr.

IPC分类号： G06K7/00

CPC分类号： G06K7/0008 ,  G06K7/10217 ,  G06K19/0707 ,  G06K19/0712

摘要： The present invention provides a method and an apparatus for providing energy to passive tags (4) in a radio-frequency identification system (1). In a radio-frequency identify-cation system (1) using the passive tags (4), a reader/writer (2) will send commands and continuous waves (10) alternately during a communication process, and the tags (4) can obtain energy from these signals sent by said reader/writer (2). The method of the present invention is that, at least one period is selected from those periods for transmitting the continuous waves (10) , and for the continuous wave (10) transmitting signals during this period, an enhanced transmitting power is used, or a extended transmitting time is used, or during this period continuous waves (10) are sent additionally to the tags (4) by an independent energy supplying apparatus (24) provided separately, so that the tags (4) can obtain from the continuous waves (10) during said selected period more energy for reading and/or writing, thereby improving the reliability of the reading and/or writing operations, and increasing the rewritable range of the radio-frequency identification system (1).

摘要翻译： 本发明提供了一种用于向射频识别系统（1）中的被动标签（4）提供能量的方法和装置。 在使用无源标签（4）的射频识别系统（1）中，读取器/写入器（2）将在通信过程中交替地发送命令和连续波（10），并且标签（4）可以获得 由所述读/写器（2）发送的这些信号的能量。 本发明的方法是从用于发送连续波（10）的那些周期中选择至少一个周期，并且对于在该周期期间的连续波（10）发送信号，使用增强发射功率，或 使用延长的发送时间，或者在此期间，单独提供的独立能量供给装置（24）将连续波（10）附加地发送到标签（4），使得标签（4）可以从连续波 10）在所述选择的周期期间更多的读取和/或写入能量，从而提高读取和/或写入操作的可靠性，并增加射频识别系统（1）的可重写范围。